Merge pull request #30752 from woocommerce/filepaths

Tweak download filepaths
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jonathansadowski 2021-09-21 14:54:39 -05:00 committed by GitHub
commit bbe3c05937
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4 changed files with 64 additions and 15 deletions

View File

@ -269,9 +269,10 @@ class WC_Download_Handler {
str_replace( 'https:', 'http:', site_url( '/', 'http' ) ) => ABSPATH,
);
$file_path = str_replace( array_keys( $replacements ), array_values( $replacements ), $file_path );
$count = 0;
$file_path = str_replace( array_keys( $replacements ), array_values( $replacements ), $file_path, $count );
$parsed_file_path = wp_parse_url( $file_path );
$remote_file = true;
$remote_file = null === $count || 0 === $count; // Remote file only if there were no replacements.
// Paths that begin with '//' are always remote URLs.
if ( '//' === substr( $file_path, 0, 2 ) ) {
@ -291,7 +292,7 @@ class WC_Download_Handler {
$file_path = realpath( WP_CONTENT_DIR . substr( $file_path, 11 ) );
// Check if we have an absolute path.
} elseif ( ( ! isset( $parsed_file_path['scheme'] ) || ! in_array( $parsed_file_path['scheme'], array( 'http', 'https', 'ftp' ), true ) ) && isset( $parsed_file_path['path'] ) && file_exists( $parsed_file_path['path'] ) ) {
} elseif ( ( ! isset( $parsed_file_path['scheme'] ) || ! in_array( $parsed_file_path['scheme'], array( 'http', 'https', 'ftp' ), true ) ) && isset( $parsed_file_path['path'] ) ) {
$remote_file = false;
$file_path = $parsed_file_path['path'];
}

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@ -95,22 +95,16 @@ class WC_Product_Download implements ArrayAccess {
* @return boolean
*/
public function is_allowed_filetype() {
$file_path = $this->get_file();
$file_path = $this->get_file();
$parsed_file_path = WC_Download_Handler::parse_file_path( $file_path );
// File types for URL-based files located on the server should get validated.
$is_file_on_server = false;
if ( false !== stripos( $file_path, network_site_url( '/', 'https' ) ) ||
false !== stripos( $file_path, network_site_url( '/', 'http' ) ) ||
false !== stripos( $file_path, site_url( '/', 'https' ) ) ||
false !== stripos( $file_path, site_url( '/', 'http' ) )
) {
$is_file_on_server = true;
}
$is_file_on_server = ! $parsed_file_path['remote_file'];
if ( ! $is_file_on_server && 'relative' !== $this->get_type_of_file_path() ) {
return true;
}
return ! $this->get_file_extension() || in_array( $this->get_file_type(), $this->get_allowed_mime_types(), true );
return ( ! $is_file_on_server && ! $this->get_file_extension() ) || in_array( $this->get_file_type(), $this->get_allowed_mime_types(), true );
}
/**
@ -177,6 +171,10 @@ class WC_Product_Download implements ArrayAccess {
if ( preg_match( '#^//+(/[^/].+)$#i', $value, $matches ) ) {
$value = $matches[1];
}
$parsed_file_path = WC_Download_Handler::parse_file_path( $value );
$value = $parsed_file_path['file_path'];
switch ( $this->get_type_of_file_path( $value ) ) {
case 'absolute':
$this->data['file'] = esc_url_raw( $value );

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@ -152,7 +152,7 @@ class WC_Tests_Customer_Functions extends WC_Unit_Test_Case {
// Test download permissions.
$prod_download = new WC_Product_Download();
$prod_download->set_file( plugin_dir_url( __FILE__ ) . '/assets/images/help.png' );
$prod_download->set_file( WC_ABSPATH . 'assets/images/help.png' );
$prod_download->set_id( 'download' );
$product = new WC_Product_Simple();
@ -382,7 +382,7 @@ class WC_Tests_Customer_Functions extends WC_Unit_Test_Case {
$customer_id = wc_create_new_customer( 'test@example.com', 'testuser', 'testpassword' );
$prod_download = new WC_Product_Download();
$prod_download->set_file( plugin_dir_url( __FILE__ ) . '/assets/images/help.png' );
$prod_download->set_file( WC_ABSPATH . 'assets/images/help.png' );
$prod_download->set_id( 1 );
$product = new WC_Product_Simple();

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@ -0,0 +1,50 @@
<?php
/**
* Class WC_Product_Download_Test.
*/
class WC_Product_Download_Test extends WC_Unit_Test_Case {
/**
* Helper utitility to get mocked object of WC_Product_Download class.
*
* @return WC_Product_Download
*/
public function get_sut_with_get_file() {
return $this->getMockBuilder( WC_Product_Download::class )
->setMethods( array( 'get_file' ) )
->getMock();
}
/**
* Test when file appears remote but is local.
*/
public function test_is_allowed_filetype_when_file_with_false_query_params() {
$download = $this->get_sut_with_get_file();
$payload = trailingslashit( site_url( '/' ) ) . 'non_exists/?/../../wp-config.php';
$download->method( 'get_file' )->willReturn( $payload );
$this->assertFalse( $download->is_allowed_filetype() );
}
/**
* Test when file appears remote, but is local and tries to appear remote by having characters to be stripped by esc_url_raw.
*/
public function test_is_allowed_filetype_when_file_with_quote_and_false_query_params() {
$download = $this->get_sut_with_get_file();
$payload = trailingslashit( site_url( '/' ) ) . '"non_exists/?/../../foo.php';
$download->method( 'get_file' )->willReturn( $payload );
$this->assertFalse( $download->is_allowed_filetype() );
}
/**
* Test when file has invalid scheme.
*/
public function test_is_allowed_filetype_when_file_with_url_escapable_scheme() {
$download = $this->get_sut_with_get_file();
$payload = trailingslashit( site_url( '/' ) );
$payload = str_replace( 'http', 'http;', $payload );
$payload = trailingslashit( $payload ) . 'wp-config.php?/../../foo'; // http;//example.com/wp-config.php?/../../foo.
$download->method( 'get_file' )->willReturn( $payload );
$this->assertFalse( $download->is_allowed_filetype() );
}
}